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function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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BirdsTweetCodersDweet

remix of d/7446 by u/prplz

function u(t) {

c.width=w=800
t||(x.fillText(x[f='font']=1+x[f],0,90),d=x.getImageData(0,0,w,w))
for(i=w;i--;)x.putImageData(d,0,T(i/300+t)*9+200,i,0,1,w)

Mar 25 2018 2:53 PM UTC

}// 138/140

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Flowing text

u/prplz

#text

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BirdsTweetCodersDweet

remix of d/7446 by u/prplz

function u(t) {

c.width=w=800
t||(x.fillText(x[f='font']=1+x[f],0,90),d=x.getImageData(0,0,w,w))
for(i=w;i--;)x.putImageData(d,0,T(i/2+t*9)*9+200,i,0,1,w)

Mar 25 2018 2:49 PM UTC

}// 138/140

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A E S T H E T I C C

u/joeytwiddle

#text
u/PiggyClone205

Neat.

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BalintCsala

function u(t) {

[..."ᥐ㈼娼傴䯈䯡擡渼阼雈꿡좾꿈꼼휼휣㈣ᥐᜳ⌥〚㼐伈怃爀萀锂꜇뜎옗퐣沈濾훔짟뫩꫱駶蟹蟹痹擷勲䋫㏢◖᫉ႺࢪΙuɤݒโᜳ"].map((i,j)=>(x.lineTo((A=i.charCodeAt())>>8,A&255)))
x.stroke()

Mar 25 2018 1:21 PM UTC

}// 133/140

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π in a circle

u/lionleaf

Pi in a pie?

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AbsoluteBlank

remix of d/7111 by u/yonatan

function u(t) {

for(X=c.width=20;X--;)for(Y=50;Y--;x.fillRect(X,Y,1,100))q=X*X/Y/Y,z=(1e3)**-0.2,x.fillStyle=`hsl(${(-t*-9+X*z^Y/z)*15},70%,${99-q**.78}%`

Mar 25 2018 11:05 AM UTC

}// 138/140

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New_Core

remix of d/7293 by u/New_Core

function u(t) {

c.width|=V=960,H=560
for(j=99;j--;x.beginPath())for(i=5;i--;x.stroke())Z=C(a=i*1.57+t+5*S(t+j/99))+8,x.lineTo(V+(S(a))/Z*V,H+(6-(j/8))/Z*H)

Mar 25 2018 11:00 AM UTC

}// 139/140

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u/Xen

very slick
u/joeytwiddle

#twister

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AnnanFay

remix of d/6692 by u/AnnanFay

function u(t) {

eval(Z)}{Z='',(D=async (d,p,...r)=>(Z+=/ f.*u\(t.*([^]*?) }/.exec(await(await fetch(d)).text())[1].slice(p),D(...r)))(888,0,7094,17)

Mar 25 2018 10:48 AM UTC

}// 132/140

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Some site changes broke the original so here's an improved version. Numbers at the end are pairs of Dweet ID and offset.

u/BuRRak

uh

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rhys5584

function u(t) {

c.width=480;x.font='150px a';x.fillText(span.score-text,0,180);for(i=48;i--;)x.drawImage(c,i*10,5,10,260,i*10,5+S(i+t*3)*5,10,260)

Mar 25 2018 10:27 AM UTC

}// 130/140

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u/BirdsTweetCodersDweet

You probably meant c.width=480;x.font='150px a';x.fillText(document.getElementsByClassName('score-text')[1],0,180);for(i=48;i--;)x.drawImage(c,i*10,5,10,260,i*10,5+S(i+t*3)*5,10,260) but for some reason the array is undefined... :/
u/BirdsTweetCodersDweet

Well, empty, rather... Anyway, I give up. But span.score-text is not an element - it's a class "score-text" of the parent "span"

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prplz

function u(t) {

x.fillStyle=`hsl(${t*=66},50%,50%)`
for(X=120;X--;)for(Y=60;Y--;)((X-60)**2+(Y-30)**2+t)**.45%1>.95&&x.fillRect(X*16,Y*16,16,16)

Mar 25 2018 10:04 AM UTC

}// 128/140

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AnnanFay

remix of d/7263 by u/AnnanFay

function u(t) {

(async 淵=>eval((t<9&&記?記:(reset(記=1),記=/u.t. {\n([^]*?) }/.exec(await(await fetch(名=0|Math.random()*9e3)).text(),t=0)))[1]))();throw 名}{記=0

Mar 25 2018 9:56 AM UTC

}// 139/140

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Slideshow v2.1: A minor bug fix. Previous versions no longer work because of dwitter improvements. Good news is we can now use }{ in dweets for one time code.

u/AnnanFay

See https://github.com/lionleaf/dwitter/issues/2… for details on the improvement.

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jylikangas

remix of d/7410 by u/fujimotos

function u(t) {

for(c.width=i=250;i--;x.fillStyle="#"+i*19)x.fillRect(0,0,6,-49,h=(H=i/9-t)<0&&H,x.setTransform(K=C(z=h>-1?h:-1),-S(z),S(z),K,99*(H+2),99))

Mar 25 2018 7:24 AM UTC

}// 139/140

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Fujimotos original now with colors as suggested

u/fujimotos

The use of x.fillStyle here is very very clever. I love it.
u/fujimotos

#dominoes